Samson AirLine 77 Wireless System Fitness Headset (AH1-Qe/CR77) - Frequency K1 489.050 MHz


AirLine 77 Wireless System Fitness Headset (AH1-Qe/CR77) - Frequency K1 489.050 MHz 


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Samson's AirLine 77 AH1 Fitness Headset system offers a true wireless experience with no beltpacks and no cables, allowing complete freedom of mobility. The system includes the AH1 Headset Transmitter, along with the CR77 Wireless Receiver.

The AH1 Headset Transmitter is designed to go around the back of your head rather than over the top. This allows the transmitter to be attached directly to the headband, out of the way and completely unobtrusive, while being comfortable and secure during performances. The AH1 offers 14 hours of operation on a single AAA battery. For the AirLine 77 AH1 Fitness Headset system, the AH1 Headset Transmitter features Samson's Qe condenser microphone element. The Qe is designed with a unidirectional microphone and cardioid pickup pattern that rejects feedback. It's ideal for group fitness instructors who need a durable headset microphone that will remain in place despite repetitious movement.

The core of the AirLine 77 AH1 Fitness Headset system is the CR77 True Diversity half-rack UHF receiver. It's designed to work flawlessly with AirLine UHF transmitters. Featuring dual tuned, molded antennea, a front panel display with large multi-segment audio level and RF level LED meters, and a large rotary volume knob that allows easy adjustment of audio output, the CR77 takes all of the guesswork out making your wireless system perform. Its synthesized PLL frequency control circuitry keeps the signal locked and true while the LED meters monitor the system's operation. The rear panel features balanced XLR and unbalanced 1/4" outputs allowing flexible connection options. Two CR77 receivers can be rackmounted together in a single space rack (adapter accessory sold separately).

With AirLine 77 AH1 Fitness Headset system, you get complete wireless freedom that's good to go anywhere your workout takes you.


Samson SW7AVSCE-K1 Specifications

Receiving Frequency K1: 489.500 MHz
Oscillation Type PLL
De-Emphasis 50 ms
IF Frequency 10.7 MHz
Antennas 1/4 wavelength rod
In/Out DC inlet
XLR balanced output
1/4" (6.3 mm) unbalanced output
LED Display Receiver A/B (green), power on (red), AF level (6 segment), RF level (6 segment)
Level Control Audio level volume, squelch level control
Operating Temperature 32 to 122°F (0 to 50°C)
Operating Voltage 12 VDC ±10%
Current Consumption 160 mA (all LED lights illuminated)
Sensitivity 18 dBm (@ THD 2%)
Squelch Sensitivity: 0 to 40 dBm (adjustable)
Selectivity ±150 kHz (AF Out ratio -60 dB)
Total Harmonic Distortion (THD) 1% max (@ AF 1 kHz, RF 46 dBu)
Signal to Noise Ratio 90 dB (with IHF-A filter)
Residual Noise 90 dBv (with IHF-A filter)
AF Frequency Response 50 Hz to 15 kHz (±3 dB overall)
Audio Output Level Unbalanced: 0 dBv
Balanced (slide switch selectable): -20 dBm (line), -40 dBm (mic)
Audio Output Impedance Unbalanced: 5 kOhms
Balanced: 600 Ohms
Operating Power 1.5 V typical, 1.05 V minimum, 2 V maximum
Current Consumption 60 mA typical
Battery Life 14 hours (AAA size battery)
RF Output Power 5 mW (-4 dB minimum, +3 dB maximum)
Frequency Stability -40 kHz minimum, 40 kHz maximum
Spurious 1 µW
Modulation 13 kHz minimum, 15 kHz typical, 17 kHz maximum, input 1 kHz - 20 dBv
Input Impedance Microphone: 2 kOhms
Total Harmonic Distortion (THD) <2% (1 kHz deviation 15 kHz)
Audio Frequency Response 50 Hz to 15 kHz (±3.5 dB)
Controls Power switch, mute switch volume
Input 2.5mm Stereo Jack
Indicators Power on (LED flash), low battery (LED on)
Dimensions Not specified by manufacturer
Weight Not specified by manufacturer
Packaging Info
Package Weight 2.4 lb

Box Dimensions (LxWxH)

11.14 x 10.58 x 3.58"



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